acidacidD.J.:[ˈæsid]K.K.:[ˈæsɪd]adj.1.■酸味的, 酸的Lemons taste acid.柠檬吃起来有些酸。2.■尖刻的Everyone doesn't like to hear the acid remarks.没有人喜欢听那尖酸刻薄的话。n.1.■〈化〉酸This chemical acts a part of an acid in our experiment.这种化学药品在我们的试验中起酸的作用。2.■酸味物质Strong acids attack metals.强酸性物质腐蚀金属。

a substance with particular chemical properties including turning litmus red, neutralizing alkalis, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind[mass noun]酸。 常与 alkali 或 base 相对■[mass noun](figurative)bitter or cutting remarks or tone of voice(喻)尖刻（或尖酸）的言语（或语调）she was unable to quell the acid in her voice.她无法压制住声音里的尖酸口吻。■[mass noun](informal)the drug LSD(非正式)迷幻药LSD （麦角二乙胺）■(Chemistry)a molecule or other species which can donate a proton or accept an electron pair in reactions(化)质子供体，电子对受体

Acids are compounds which release hydrogen ions (H+) when dissolved in water. Any solution with a pH of less than 7 is acidic, strong acids such as sulphuric or hydrochloric acid having a pH as low as 1 or 2. Most organic acids (carboxylic or fatty acids) contain the carboxyl group -COOH

adjective

containing acid or having the properties of an acid; having a pH of less than 7含酸的，酸性的，pH值小于7的。 常与 alkaline 或 basic 相对poor, acid soils.贫瘠的酸性土壤。■(Geology)(of rock, especially lava) containing a relatively high proportion of silica(地质)（岩石，尤指熔岩）含相当量硅石的■(Metallurgy)relating to or denoting steel-making processes involving silica-rich refractories and slags(冶)（与炼钢过程中涉及硅石含量高的难熔物及炉渣）酸性（有关）的

sharp-tasting or sour味道刺激的，酸味的acid fruit.酸的水果。■(of a person's remarks or tone) bitter or cutting（人的话语或口吻）尖刻的，尖酸的she was stung into acid defiance.她被刺痛了，用尖刻的语言进行了反击。■(of a colour) strikingly intense or bright（颜色）刺目的，非常强烈、鲜亮的an acid green.耀眼的绿色。